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expand stack alignment docs

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morgan 2023-11-20 12:29:31 +08:00
parent c91c8cc6c3
commit 63c604e336
1 changed files with 1 additions and 1 deletions
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libcortex_a9/src/lib.rs
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@ -66,7 +66,7 @@ macro_rules! interrupt_handler {
concat!("movtne r1, :upper16:", stringify!($stack1)), concat!("movtne r1, :upper16:", stringify!($stack1)),
"mov r0, sp", "mov r0, sp",
"mov sp, r1", "mov sp, r1",
"push {{r0, r1}}", // for stack alignment "push {{r0, r1}}", // 2 registers are pushed to maintain 8 byte stack alignment
concat!("bl ", stringify!($name2)), concat!("bl ", stringify!($name2)),
"pop {{r0, r1}}", "pop {{r0, r1}}",
"mov sp, r0", "mov sp, r0",